Question 1

Identify the element that has a ground-state electronic configuration of [Ar]4s23d104p1.

Accepted Answer

A)  Al 
B)  Cu 
C)  In 
D)  Ga 
E)  B 
A)  Al 
B)  Cu 
C)  In 
D)  Ga 
E)  B

Question 2

An element that has the valence electron configuration 4s2 belongs to which period and group?

Accepted Answer

A)  period 4; group 2 
B)  period 4; group 14 
C)  period 4; group 6 
D)  period 4; group 1 
E)  period 4; group 9 
A)  period 4; group 2 
B)  period 4; group 14 
C)  period 4; group 6 
D)  period 4; group 1 
E)  period 4; group 9

Question 3

The d orbital can hold a maximum of ________ electrons.

Accepted Answer

A)  2 
B)  6 
C)  8 
D)  10 
E)  14 
A)  2 
B)  6 
C)  8 
D)  10 
E)  14

Question 4

Use the periodic table to predict the most stable oxidation state for the following element: Al

Accepted Answer

A)  +1 
B)  +2 
C)  +3 
D)  -1 
E)  -2 
A)  +1 
B)  +2 
C)  +3 
D)  -1 
E)  -2

Question 5

Use the periodic table to determine the ground-state electron configuration for the following element: Sc

Accepted Answer

A)  [Ar]4s23d1 
B)  [Ar]4s23d2 
C)  [Ar]4s3 
D)  [Ar]3d3 
E)  [Ar]4s23d3 
A)  [Ar]4s23d1 
B)  [Ar]4s23d2 
C)  [Ar]4s3 
D)  [Ar]3d3 
E)  [Ar]4s23d3

Question 6

Describe the reaction of the noble gases with metals.

Accepted Answer

A)  inert 
B)  vigorous 
C)  mild reaction 
D)  forms water 
E)  dissolves 
A)  inert 
B)  vigorous 
C)  mild reaction 
D)  forms water 
E)  dissolves

Question 7

How many valence shell electrons does an atom of boron have?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  5 
E)  13 
A)  1 
B)  2 
C)  3 
D)  5 
E)  13

Question 8

Using the periodic table, identify the element with the following exception electron configuration: [Kr]4d10

Accepted Answer

A)  Sn 
B)  Ru 
C)  Sr 
D)  Cd 
E)  Pd 
A)  Sn 
B)  Ru 
C)  Sr 
D)  Cd 
E)  Pd

Question 9

An element that has the valence electron configuration 3s1 belongs to which period and group?

Accepted Answer

A)  period 4; group 7 
B)  period 4; group 2 
C)  period 4; group 1 
D)  period 3; group 2 
E)  period 3; group 1 
A)  period 4; group 7 
B)  period 4; group 2 
C)  period 4; group 1 
D)  period 3; group 2 
E)  period 3; group 1

Question 10

Identify the ground-state electron configuration for Sr.

Accepted Answer

A)  [Kr]5s24d2 
B)  [Kr]5s24d105p2 
C)  [Kr]5s2 
D)  [Kr]5s25d105p2 
E)  [Kr]5s24d10 
A)  [Kr]5s24d2 
B)  [Kr]5s24d105p2 
C)  [Kr]5s2 
D)  [Kr]5s25d105p2 
E)  [Kr]5s24d10

Question 11

How many valence electrons does an atom of Ti possess?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
E)  0 
A)  2 
B)  4 
C)  6 
D)  8 
E)  0

Question 12

Match the following.
-valence electrons

Accepted Answer

A) electrons in the outermost shell 
B) 1 
C) 2 
D) electrons in completed shells 
A) electrons in the outermost shell 
B) 1 
C) 2 
D) electrons in completed shells

Question 13

Use the periodic table to predict the most stable oxidation state for the following element: K

Accepted Answer

A)  +1 
B)  +2 
C)  +3 
D)  -1 
E)  -2 
A)  +1 
B)  +2 
C)  +3 
D)  -1 
E)  -2

Question 14

Which of the following have the same number of valence electrons?

Accepted Answer

A)  Rb, Sb, I 
B)  Ga, Sn, Bi 
C)  As, Sb, Bi 
D)  Ar, Kr, Br 
A)  Rb, Sb, I 
B)  Ga, Sn, Bi 
C)  As, Sb, Bi 
D)  Ar, Kr, Br

Question 15

Which atom in each group (I and II) has the smallest atomic radius? (I) Ba, Hf, At (II) As, Sb, Bi

Accepted Answer

A)  Ba; As 
B)  Ba; Bi 
C)  At; As 
D)  At; Bi 
A)  Ba; As 
B)  Ba; Bi 
C)  At; As 
D)  At; Bi

Question 16

Identify the number of core electrons for O.

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
E)  4 
A)  0 
B)  1 
C)  2 
D)  3 
E)  4

Question 17

Why is the first ionization energy of sulfur smaller than the first ionization energy of phosphorus?

Accepted Answer

When sulfur loses one electron, it takes

Question 18

Identify the number of valence electrons for Pb.

Accepted Answer

A)  4 
B)  2 
C)  12 
D)  28 
E)  26 
A)  4 
B)  2 
C)  12 
D)  28 
E)  26

Question 19

What is the effective nuclear charge experienced by the valence electrons of Br? (Hint: Use Slater's rule.)

Accepted Answer

A)  2.85 
B)  20 
C)  7.60 
D)  3.00 
E)  3.15 
A)  2.85 
B)  20 
C)  7.60 
D)  3.00 
E)  3.15

Question 20

Using the periodic table, identify the element with the following exception electron configuration: [Kr]5s14d4

Accepted Answer

A)  Ti 
B)  Zr 
C)  Nb 
D)  W 
E)  Mn 
A)  Ti 
B)  Zr 
C)  Nb 
D)  W 
E)  Mn

Exam 8: Periodic Properties of the Elements

Identify the element that has a ground-state electronic configuration of [Ar]4s23d104p1.

An element that has the valence electron configuration 4s2 belongs to which period and group?

The d orbital can hold a maximum of ________ electrons.

Use the periodic table to predict the most stable oxidation state for the following element: Al

Use the periodic table to determine the ground-state electron configuration for the following element: Sc

Describe the reaction of the noble gases with metals.

How many valence shell electrons does an atom of boron have?

Using the periodic table, identify the element with the following exception electron configuration: [Kr]4d10

An element that has the valence electron configuration 3s1 belongs to which period and group?

Identify the ground-state electron configuration for Sr.

How many valence electrons does an atom of Ti possess?

Match the following. -valence electrons

Use the periodic table to predict the most stable oxidation state for the following element: K

Which of the following have the same number of valence electrons?

Which atom in each group (I and II) has the smallest atomic radius? (I) Ba, Hf, At (II) As, Sb, Bi

Identify the number of core electrons for O.

Why is the first ionization energy of sulfur smaller than the first ionization energy of phosphorus?

Identify the number of valence electrons for Pb.

What is the effective nuclear charge experienced by the valence electrons of Br? (Hint: Use Slater's rule.)

Using the periodic table, identify the element with the following exception electron configuration: [Kr]5s14d4

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry Ii: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

Identify the element that has a ground-state electronic configuration of [Ar]4s²3d¹⁰4p¹.

An element that has the valence electron configuration 4s² belongs to which period and group?

Using the periodic table, identify the element with the following exception electron configuration: [Kr]4d¹⁰

An element that has the valence electron configuration 3s¹ belongs to which period and group?

Using the periodic table, identify the element with the following exception electron configuration: [Kr]5s¹4d⁴